Radioastronomical frequency for interstellar NH+

Details Radioastronomical frequency for interstellar NH+ Radioastronomical frequency for interstellar NH+

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.271..137w&link_type=abstract

Nature, vol. 271, Jan. 12, 1978, p. 137. NATO-supported research.

Astronomy and Astrophysics

Astronomy

11

Diatomic Molecules, Interstellar Matter, Molecular Energy Levels, Nitrogen Hydrides, Radio Spectra, Electron Transitions, Line Spectra, Molecular Ions, Molecular Rotation, Molecular Spectra, Radio Astronomy

Scientific paper

The splitting of molecular energy levels of diatomic molecules gives rise to lambda-doublets, which are the source of some radioastronomical spectral lines. A likely interstellar diatomic molecule is NH+, but such a species has not yet been observed. Calculations based on sigma interactions have given rise to predictions of a rotational frequency of 13,625 MHz for NH+, which is in good agreement with laboratory measurements of 13,520 plus or minus 300 MHz.

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